package org.example.service.imp;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import lombok.extern.slf4j.Slf4j;
import org.example.dto.DishDto;
import org.example.entity.Dish;
import org.example.entity.DishFlavor;
import org.example.mapper.DishMapper;
import org.example.service.DishFlavorService;
import org.example.service.DishService;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.util.List;
import java.util.stream.Collectors;

@Service
@Slf4j
public class DishServericeImpl extends ServiceImpl <DishMapper, Dish> implements DishService {
    @Autowired
    private DishFlavorService dishFlavorService;

    @Override
    @Transactional
    public void saveWithFlavor(DishDto dishDto) {
        this.save(dishDto);

        long dishId = dishDto.getId();

        List<DishFlavor>  flavors =dishDto.getFlavors();

        flavors = flavors.stream().map((item)->{
            item.setDishId(dishId);
            return  item;
        }).collect(Collectors.toList());
        dishFlavorService.saveBatch(flavors );
    }

    @Override
    public DishDto getByIdWithFlavor(Long id) {

        Dish dish = this.getById(id);
        DishDto dishDto =new DishDto();
        BeanUtils.copyProperties(dish,dishDto);

        LambdaQueryWrapper<DishFlavor> queryWrapper =new LambdaQueryWrapper<>();
        queryWrapper.eq(DishFlavor::getDishId,dish.getId());
        List<DishFlavor> flavors =dishFlavorService.list(queryWrapper);
        dishDto.setFlavors(flavors);
        return dishDto;
    }

    @Override
    @Transactional
    public void updateWithFlavor(DishDto dishDto) {
      this.updateById(dishDto);
      LambdaQueryWrapper<DishFlavor> queryWrapper = new LambdaQueryWrapper();
      queryWrapper.eq(DishFlavor::getDishId,dishDto.getId());
      dishFlavorService.remove(queryWrapper);

      List<DishFlavor> flavors =dishDto.getFlavors();

      flavors = flavors.stream().map((item)->{
          item.setDishId(dishDto.getId());
          return  item;
      }).collect(Collectors.toList());

      dishFlavorService.saveBatch(flavors);

    }

}
